

Carbide high speed end mills
The EC40A series end mills combine strength and superior performance. These square profile end mills are designed to extend tool life in stainless steel, high-temperature alloys, and hardened steels up to 65 Rc. Advanced grinding and manufacturing processes ensure cutting stability, and an eccentric removal design maximizes edge strength in both roughing and finishing applications. Developed for aerospace precision parts, the EC40A end mill features eccentric removal for maximum edge strength and an Aplus coating for enhanced performance in hard materials, making it an excellent choice for a wide range of applications.
| Part number | EC40600A |
|---|---|
| Material | Ultrafine particle tungsten carbide alloy |
| Product Name | 4-flute tungsten carbide end mill- 38º |
| OEM / ODM | Made to your samples or drawings |
| Specifications | Ø6.0 × 20L × Ø6.0 × 3X |
| Packaging (mm) | 12.5 × 12.5 × 69L |
| Blade Diameter D | Ø6.0mm |
| Blade Length H | 12.0mm |
| Shank diameter d | Ø6.0mm |
| Overall Length L | 50.0mm |
| Coating | APLUS |
| MOQ | 2 pcs |
| Lead time | 1 week |
| Origin | Shenzhen, China |
Design details engineered for accuracy, tool life and process stability.
Enables ultra-smooth progressive cutting, significantly reducing cutting resistance and vibration. Surface finish can reach below Ra0.4μm, suitable for precision machining of high-hardness materials.
Surface hardness HV3400, high temperature resistance up to 1400°C, maintains excellent wear resistance even under high-speed cutting, reducing the risk of coating peeling.
Substrate hardness up to HRC67, combining high hardness and toughness, tool life is 2-3 times that of ordinary end mills.
The cutting edge undergoes special passivation treatment, able to withstand the cutting impact of high-hardness materials, with 40% higher resistance to chipping than ordinary end mills.
With a friction coefficient of only 0.25, it effectively suppresses built-up edge formation and ensures stable surface quality for machining high-hardness materials.
Provides excellent performance and high-temperature resistance in various ferrous metals, including low-alloy and medium-alloy steels, tool steels, and cast iron.
The eccentric chip removal design achieves maximum edge strength in both roughing and finishing applications.
Send your workpiece material and cutter dimensions. We supply standard end mills and special milling cutters made to your samples or drawings.